package org.smile.day02;

public class Demo {

    public static void main(String[] args) {
        int sum = Math.sum(4, 3);
//        Math.sub(3);

        Math math = new Math();
        int a = math.sum(3, 4);
        math.sub(3);
        int[] sort = math.sort(new int[9]);
    }
}
